Brush for a vacuum cleeaner with tube conduit for inhalation

ABSTRACT

A vacuum cleaner brush with a flexible internal suction pipe ( 100 ), in plastic material and items in plastic or steel, intended for application to all types of domestic or for community vacuum cleaners, fitted with a single articulated joint or with a double articulated joint compared with two axes ( 136, 144 ), parallel to the ground, fitted in centre line with a flexible pipe ( 120 ) rigidly connected to the central connection ( 116 ) of the suction split ( 112 ) on one side and on the other, to the rigid pipe ( 132 ) of the upper and main articulated joint ( 142 ), between which a connection ( 146 ) is inserted, with the possibility of oscillation-rotation, second ( 150 ), without however allowing the retraction ram with an axial retaining ring also placed between them ( 148 ), producing a continuity without possibility of any loss in the joins for the pipe ( 120 ).

The present utility model patent is aimed at the domestic cleaning toolssector. More specifically it is directed at the tools used with normalvacuum cleaners.

Currently the vacuum cleaner brushes intended for the cleaning ofdomestic floors and carpets make a simple fluctuation or double orarticulated joint system available to adjust the rigid tube tilt, heldup and guided by the operator, to the brush rested on the floor to becleaned intaking air, dust and cleaning of the floors and carpets viaspecific areas and sections. The said articulated joints, with a doubleor single tilt, simply presenting pipes conjugated and hinged betweenthemselves achieving in final pipeline formed of two or three continuouselements oscillating between themselves and so as to offer a modest andapproximate peripheral seal, exclusively assessable by the tolerance ofthe connection of two or three pipelines, with tolerance being generallyquite slack even for the kind of plastic materials with which they areachieved. This manufacturing-related factor produces a serious loss ofair flow and especially from the vacuum produced by the suction machineintaking with obvious shrinkage or loss of global yield and this intotal disharmony with the current energy recovery concepts.

Specifically, the present brush, with an appearance similar to thosealready present on the market, uses a sucked air flow system andtechnique, via this itself, guiding to a high yield with a specificflexible pipeline never used or applied as regards similar tools.

The present utility model patent achieves a brush for the cleaning offloors of any type both for ceramic paving tiles and of marble orparquet in strips of wood or plastic, then, as for all of these brushes,connected to a handle in metal or plastic tube which operates from therigid pipe between the brush itself and the flexible tube directlyconnected to the vacuum cleaner or to the centralised domestic suctionsystem.

The present brush, besides being equipped with all devices present onthe better brushes present on the market shows, in one single way, aflexible pipe rigidly connected to a suction tube end and to the otherwith a linear split or fissure connection placed on the wide base of thesame brush, flexible pipe, which avoids all of the three filaments oflosses of intaken air via the normal articulated joints.

Indeed, the present brush, presents, as has been said, all of the betterdevices to optimise the various types of cleaning or suction for whichit shall be used, being equipped with a practical double jointing systemfor adjustment of the brush level with a rigid tube axle or even ahandle with support wheels from the articulated joint itself, beingequipped with a lesser metal suction level shaped with split lateralopenings for returning action and small wheels supporting such a levelcapable of eliminating possible sliding on the ground of the levelitself, being supplied with fixed and mobile gaskets to isolate thesuction or splits zone and therefore also equipped with a two positioncontrol lever established to position the aforesaid gaskets according tothe types of surfaces to suction, or, floors or carpets.

Therefore the present brush, besides evidencing all of this equipment,quite recurrent in part or “as a whole” and also on others present onthe market, connects, in accordance with the solution described herein,the flexible tube connection connected between the first articulatedjoint, to the suction tube and the central slot connection ortransversal brush work split. This rigid section flexible tube,connected to the appropriate fixed ends and with a tin seal guaranteessecure continuity between the dusty air suction zone and the rigid pipe,also with the so called handle of the vacuum cleaner, operating withoutany loss of load owing to fissures or perimeters, in the articulatedjoint zone, without a sure seal, thus offering a suction circuit yield,also greater than 50% with regard to the normal brushes and tubes witharticulated joint in suction. Indeed, with this system there are nosubstantial variations in the suction section between the brush restingon the ground, the connection, flexible sleeve collar and the mainsuction tube with reduction of noise and a greater yield with regard tothe other tools similar available for purchase.

Diagram 1 enclosed shows a view from on high of the brush in theappropriate assemblage.

Diagram 2 enclosed is instead the median AA section of Diagram 1 andshows the flexible pipe between the brush and the vacuum cleaner tube inaccordance with the present Utility Model.

Diagram 3 shows a view of the brush without the connection elementbetween the two articulated joints but shows the flexible tube.

Diagram 4 is the BB section of Diagram 3 in which internal connectionsand the present details of this brush are shown.

Diagram 5 essentially relates to the CC section where the gasketscommutation lever is shown from the flooring position to that forcarpets.

Diagram 6 shows a view from the bottom of the brush rest level flat.

Now moving on to an examination of the preferred solution for theachievement of the present brush; to the numeric references indicated inthe enclosed drawings, the following meanings as mentioned and reportedhereinafter shall be attributed.

100 Brush for vacuum cleaner in its own assemblage made in plasticmaterials composed of various functional elements fitted with a doublearticulated joint, gasket and front mobile brush in vertical for use onfloors or carpets, two wheel couples, slot or suction split butespecially fitted with a flexible tube for connection between thesuction split and the vacuum cleaner connection tube, pipe withoutdispersions or accidental or concentrated load losses.

110 Body or frame carrying the brush itself is the structural element inplastic material.

112 Transversal pipe or slot of suction split with connection central tothe vacuum cleaner suction pipe, is used for sheet pressing but alsopressing of plastic material; glued to it are a couple of smallanti-friction and wear and tear sliding blocks as on any other brush.

114 Indication arrows from the reverse suction or air flow to the maintube or pipe.

116 Connection or pipe linking between 112 and 120 flexible sleevecollar which is the main subject of the present Patent.

118 A pair of wheels on brush support flat avoid ground friction betweensurfaces lower than the same and the ground.

120 Flexible sleeve collar placed between articulated joint 132 higherpipe on the second fulcrum, and connecting connection 116 of 112, is themost important detail and in accordance with the present Patent'ssolution, it is achieved with a flexible tube fitted with rings or metalspirals to reinforce the extreme surfaces of the tube itself which, dueto internal suction, might be deformed and close towards the centre withthe present sleeve collar having an air passage section equal to 116 and132-146 and also to connection 112, not creating in these transit zonesdifferent between their turbulences thus producing a major yield andminor losses.

122 Clamp, by way of example, of the setting of 120 to 116.

124 Front fiber brush, present on the front of 100 as is the case foralmost all for all of the vacuum cleaner brushes available on themarket; can be lifted and lowered to the ground, with a pedal mechanismschematized in 160.

126 Rear seal gasket with functions similar to 124; it can be raised orlowered together with 124 but can also be fixed.

128 Profile less than U fixed on 110 for stiffening and support ofwheels 118.

130 Greater fairing applied to 110.

132 Rigid upper articulated joint pipe towards the suction tube; theupper end of 120 is connected to this.

134 Intermediate oscillation support between brush body 110 and upperarticulated joint 142.

136 Lower oscillation axle of support 134 (first fulcrum).

138 Reverse of oscillation with regard to first axle 136.

140 Reverse of oscillation with regard to wheel axle 144.

142 Upper oscillating articulated joint, around second centre 144.

144 Second fulcrum. Rear wheel axle 154.

146 Rigid exit sleeve collar on second articulated joint 142.

148 Axial retaining ring for rotation and oscillation of 146.

150 Reverse of oscillation of 146.

152 Tubular stub pipe of 142, leads to the interior of 148 and 146.

154 Wheels, on second articulated joint.

160 Pedal for the control of elastic movement levers of 124 and possibly126.

162 Shaft for the movement of the bistable mechanism activated by 160.

164 Pair of anti-adhesion sliding block runners of 112, flanked by slot112 in central position and with maximum suction.

166 Arrows indicating lifting-lowering of 124 and 126.

A brush for vacuum cleaner 100 is shown in the functional views from onhigh complete as in Diagram 1 or sectioned according to a transversal AAmedian flat as in Diagram 2 in table 1/4 attached.

These diagrams 1 and 2 show a solution in accordance with the brushmentioned in the present Patent, so that the functionality of theflexible pipe 120, connected on one side to pipe 116 and on the otherside to pipe 132 can be understood, and therefore by rotatingarticulated joint 142 with respect to axle 144, said pipe 120 willadjust to the subsequent positions assumed by brush 100 with regard tothe inclinations of 146, maintaining air flow path continuity accordingto 114 and safely without dispersions or lateral air returning actionson various articulated joint joins as instead happens today in allcases. As already expected, with flexible connection 120 and sleevecollars and adjacent connections, there are no section variations in thesucked air path in the brush crossover, unlike what is the case withbrushes currently on the market; the risult is less turbulence, moresilence and above all fewer losses.

The axes of two fulcrums of articulated joints 144 and 136, the suctionslot in section 112, the front 124 mobile brush and rear gasket 126,movement supports without sliding by means of wheels 118 placed on 128and to the rear, of second articulated joint, wheel 154 are always shownin these diagrams. Therefore this brush offers all the operativepossibilities of the best vacuum cleaner brushes but it also ensures ahigher yield of 50% compared with the current models, without therebeing losses on all joins or articulated joints, both single and double.

Subsequent Diagrams 3 and 4 further clarify the preferred manufacturingmethod in accordance with this flexible 120 connection solution betweenthe brush and oscillating articulated joint 142, according to 140, thearticulated joint 136 first axle position, all in good view in theabsence of element 134 of the intermediate articulated joint (Diagram1). In addition, sleeve collar 146 being able to rotate according to150, the total freedom of movement of (100) is clearly noticeable withregard to the tube or handle of the vacuum cleaner.

Diagram 5 adds nothing more about flexible sleeve collar 120 but itshows, particularly in section CC, that movement pedal or lever 160 ofbrush 124 according to 166, in some cases even 126, can follow invertical movement 124 and these movements produce a better use or in thesuction of floors or carpets.

Lastly in Diagram 6 a view from the bottom is shown with slot 112 orslit with a central suction opening which is then connected to the rearwith 120, wheels 118 on profile 128 and wheels 154 on articulated joint142.

To conclude and as has many been times been asserted, this brush 100offers all characteristics and services of the best brushes for carpetor floor vacuum cleaners but it sets itself apart from these forconnection 120, without losses or dispersions, with an increase in yieldwithout sacrificing any of the performances provided by analogous tools.

1. A vacuum cleaner brush with flexible internal suction pipe (100), inplastic material and items in plastic or steel, intended for applicationto all types of domestic or for community vacuum cleaners, fitted with asingle articulated joint or with a double articulated joint comparedwith two axes (136, 144), parallel to the ground, fitted in centre linewith a flexible pipe (120) rigidly connected to the central connection(116) of the suction split (112) on one side and on the other, to therigid pipe (132) of the upper and main articulated joint (142), betweenwhich a connection (146) is inserted, with the possibility ofoscillation-rotation, second (150), without however allowing theretraction ram with an axial retaining ring also placed between them(148), producing a continuity without possibility of any loss in thejoins for the pipe (120), transferring all suction power generated bythe vacuum cleaner to the ground, with the present brush (100) fittedwith all accessories and technical devices present in the normal brushesbeing traded, such as the mobile or fixed frontal brush (124), mobile orfixed rear gasket (126), pedal (160) and lifting mechanism, double pairof wheels in addition to the two articulated joints (136, 144) androtation (150).
 2. The brush (100) as in claim 1 fitted with a suctionpipe (120), between the slit (112) and the articulated connection (132),achieved with a flexible tube to a rigid envelope reinforced withspirals or metal rings to maintain the appropriate constant air and dustpassage section and therefore not to be squashed due to the vacuumproduced by the vacuum cleaner inside the tube itself.
 3. The brush(100) as in claim 1, where the split (112) is connected to a specificsleeve collar (116) connectable to the flexible pipe (120) with a clampor clamping ring without blow-byes or concentrated load losses due tothe said connection.
 4. The brush (100) as in claim 1, fitted with arigid connection and to the sleeve collar (132) of the oscillationarticulated joint (142), of the flexible tube (120) for the purpose ofeliminating losses from the suction flow in the adjustment zones inbrush with handle or rigid tube, connected with the terminal pipe (146)of the articulated joint in work positions.
 5. The brush (100) as inclaim 4 where the transversal pipes (112), the connection pipe (116),the flexible sleeve collar (120) and subsequent connections (132,146) ofthe connection to the vacuum cleaner have a section almost constant fora maximum yield or without additional losses and with noise reduction.6. The brush (100) as in claim 1, fitted with front, fixed or mobilelinear brush (124) in vertical (166) by itself or together with thegasket (126), for the purpose of cleaning of carpets, using the pedal(160) with bistable metal spring mechanism or in synthetic resins. 7.The brush (100) as in claim 1, fitted with one or two pairs of wheelsupports, (118) and (154), one of which acts as the primary oscillationaxle (140) with regard to the support flat in the ground of the entirebrush.
 8. The brush (100) as in claim 1, fitted with final sleeve collar(146) oscillating (150) around its own axle fitted with a ring (148)placed between the female (152) and male (146) sleeve collar.
 9. Thebrush (100) as in claim 1, fitted with an oscillation axle correspondingto the axle (144) of the main complete support wheels system, with thepossibility of a second oscillation axle (136) in centre line on theshort side of the base of the brush.